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⇤ ← Revision 1 as of 2009-02-17 06:02:41
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Size: 679
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| Deletions are marked like this. | Additions are marked like this. |
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| >>> bin = lambda n:''.join({'0':'0','1':'1','2':'10','3':'11','4':'100','5':'101','6':'110','7':'111'}[x] for x in oct(n)[1:]) '' | >>> bin = lambda n:'0b'+''.join({'0':'0','1':'1','2':'10','3':'11','4':'100','5':'101','6':'110','7':'111','8':'1000','9':'1001','a':'1010','b':'1011','c':'1100','d':'1101','e':'1110','f':'1111'}[x] for x in hex(n)[2:].rstrip('L'))'' |
| Line 15: | Line 15: |
| '''1111111111111111' '' | "''11111111111111111' '' |
一句话将int转化为二进制字符串
>>> bin = lambda n:'0b'+.join({'0':'0','1':'1','2':'10','3':'11','4':'100','5':'101','6':'110','7':'111','8':'1000','9':'1001','a':'1010','b':'1011','c':'1100','d':'1101','e':'1110','f':'1111'}[x] for x in hex(n)[2:].rstrip('L'))
>>> bin(65535)
"11111111111111111'
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